Mankind has had many heroes. They're about to need a new one.

The most lucrative business venture in history has civilization teetering on the brink of a cataclysmic transformation. And nobody sees it coming. Anyone posing a threat to the venture's success is being targeted...

A man plummets to a gruesome death. A scientist vaporizes. A brutal sadist enslaves a young woman.

Smart, adventurous friends - Aspen, Sequoia, Fox, and Breeze - share a colorful history. Back in their teens on the Ronopo Indian Reservation, they swore a secret oath. That oath now...